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发明名称
Способ изготовления бетонных и железобетонных лестничных ступеней
摘要
申请公布号
SU51443(A1)
申请公布日期
1937.11.30
申请号
SUD51443
申请日期
1937.02.03
申请人
STANKEEV L.M.
发明人
STANKEEV L.M.
分类号
E04F11/116;B28B11/08
主分类号
E04F11/116
代理机构
代理人
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